General

  • Target

    4280e6e70fceb92c11d7de42e14854783d09a551769b9117097cd4a5affe3b35.zip

  • Size

    1.5MB

  • Sample

    231119-zjy3facc5y

  • MD5

    e963cd1dd95c314b62c6e765b78dad04

  • SHA1

    140cb88e19579cbd98e40524aea638b7bedc0fec

  • SHA256

    a1b037946d5870da83b84793cf6cfb478610e6316c14533434663d856f2b674c

  • SHA512

    44cf3c1209840e8249fb798c9eab6d3dc4df02a2f1bcefb4e96510e717fc8aca834d732f0058cec348bdb0de806df55fb43aa7d62da91da78fb287b800cca527

  • SSDEEP

    24576:Yrxyi0WW/KL0t6gXmfiblelXS0+U6dJFCQmnnFuSnxHhh6Rpt7ZdJr2wCBhIZJ:uj01/Kr6WcJFDmFusx6ZlHyxBhwJ

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

grome

C2

77.91.124.86:19084

Extracted

Family

amadey

Version

3.89

C2

http://77.91.124.1/theme/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explothe.exe

  • strings_key

    36a96139c1118a354edf72b1080d4b2f

rc4.plain

Targets

    • Target

      4280e6e70fceb92c11d7de42e14854783d09a551769b9117097cd4a5affe3b35.exe

    • Size

      1.5MB

    • MD5

      e51db332898f96c123006867309d8ff7

    • SHA1

      5f0766969d31cdc281703bfe21e6f94e9625a039

    • SHA256

      4280e6e70fceb92c11d7de42e14854783d09a551769b9117097cd4a5affe3b35

    • SHA512

      3a54dbacec0c202fcbfc9bf963eec06ddd3d0a05158504a389d39c734942fc4e20177a1d4e1700262b8e1da1548d57ce75650f10b100175a560d2891e25b7c10

    • SSDEEP

      49152:gM3XFzwFlHHkXZ2spmEitbxvbmLOBgqRQqWr:zHF8FVHkXZ/pMt9jmLFq2q

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Mystic stealer payload

    • Modifies Windows Defender Real-time Protection settings

    • Mystic

      Mystic is an infostealer written in C++.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

    • Detected potential entity reuse from brand paypal.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Tasks